Teac A-6300 - Page 7

4. TEAC TEST TAPE -VTT SERIES -
- PLAYBACK ONLY -
TEAC-YTT Series Test Tapes are designed for aligning and checking
the playback system performance of any tape recorder. They have
been manufactured to be within close tolerance to the NAB Stand¬
ard, and the recorded signal format has been arranged for maximum
convenience during test procedures.
YTT-l002/1003/1004 (FOR PLAYBACK ALIGNMENT)
TYPE
YTT-l 002
YTT-l 003
YTT-l 004 REMARKS
TITLE
PLAYBACK ALIGNMENT
TAPE
WIDTH
1/4 INCH
BASE
1 MIL
1 MIL
1-1/2 MIL
TAPE SPEED(ips)
3-3/4
7-1/2
15
Accuracy: 0.2%
Wow and Flutter: 0.1%(WRMS)
RECORD TRACK FULL TRACK
Azimuth Angle Tolerance:
90°±1.5 *
RECORDING
STANDARD
NAB
CHARACTER¬
ISTICS
TIME
CONSTANT
(vs)
3180+90
3180+50 3180+50
TOLER¬
ANCE
WITHIN
0.5dB
31.5-4KHz
31.5-lOKHz
31.5-16KHz
WITHIN
1 dB
8K-14KHZ 12.5KHz-20KHz
18K-22KHZ
SECTION
FREQUENCY (Hz)
USE
YTT-l002
YTT-l003
YTT-l004
1
400
400 400
* OdB 30s
Operating Reference
Level Calibration
2
7,500
15,000
15,000
-lOdB
60s
Azimuth Alignment
400
400
400
RECORDED
SIGNAL
3
14,000
12,000
10,000
8,000
6,300
4,000
2,000
1,000
500
250
125
80
63
40
31.5
20,000
18,000
16,000
12,000
10,000
6,000
4,000
2,000
1,000
500
250
125
80
63
40
31.5
22,000
20,000
18,000
16.000
12,500
10,000
6.300
4,000
2,000
1,000
500
250
125
80
63
40
31.5
15s
each
Frequency Response
Check
* OdB recording level is 6dB below the 3% T.H.D. level
YTT-2002/2003/2004 (FOR TAPE SPEED AND WOW-FLUTTER TESTING)
TYPE YTT-2002 YTT-2003
YTT-2004
REMARKS
TITLE
TAPE SPEED AND FLUTTER TSET
TAPE
WIDTH
1/4 INCH
BASE
1 MIL
1 MIL
1-1/2 MIL
TAPE SPEED(ips) 3-3/4
7-1/2
15
WOW AND FLUTTER
' 0.07% 0.05% 0.03%
Weighted RMS
RECORDED WIDTH
FULL TRACK
RECORDED
SIGNAL
FREQUENCY
3,000Hz
LEVEL
-5dB
OdB: Operating
Reference Level
TIME
7 MINUTES
Since these tapes will be your own reference standard, care should
be exercised, in handling and storage, not to expose them to any
magnetic flux which might deteriorate or completely destroy the
recorded signals. High temperature and humidity are also harmful
to the tape.
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